- DTMM stands for Design, Technology and Management in Manufacturing (Romania)
- DTMM stands for Digital Terrain and Marine Model (geology)
- DTMM stands for Detailed Thermal Math Model
- DTMM stands for Dynamic Technology Management Model (Onsett International Corporation)
- DTMM stands for Discrete-Time Markovian Model
- DTMM stands for Desk Top Money Machine
DTMM